They may not advertise “getting you there at 1.2x legal speed” but the sooner they drop you off, the sooner they can get another fare. Over a whole fleet it will add up to changing the size of the required fleet.

If getting a ticket one ride in a thousand is cheaper than deploying another 2000 cars to make up for the increased trip time I’d expect them to keep getting tickets.

I’m also not sure they don’t do it on purpose. Tesla self driving has an aggressive mode willing to speed and roll through stop signs. Those were deliberate, law breaking, choices.